Sorber with multiple cocurrent pressure equalized upflows

Details Sorber with multiple cocurrent pressure equalized upflows Sorber with multiple cocurrent pressure equalized upflows

1995-11-13

1997-08-26

Doerrler, William

Refrigeration

Processes

Evaporation induced by sorption

62487, 62494, 62497, F25B 1500, F25B 3700

Patent

active

056600496

ABSTRACT:
A sorber for sorbing a vapor into (absorber) or out of (desorber) a liquid sorbent comprised of a sequential plurality of highly effective and intensified locally cocurrent sorptions, but with non-cocurrent flow of vapor and liquid between the individual sorptions. The structure containing the locally cocurrent upflow is preferably comprised of enhanced heat transfer surface, making the sorption diabatic, further enhancing the intensification, and improving the sorption efficiency. Referring to FIG. 12 , vertical cylinders (70) and (71) form an annular space within which desorption occurs, powered by external heat source (72) and internal heat recuperation (77). The liquid portion of the annulus is divided into multiple compartments by folded rectangular fin (73). The space above fin (73) allows pressure equalization of all compartments. Each compartment is divided by insert (80) into separate vapor-liquid riser channels and a liquid downcomer channel. The sorbent liquid flow sequentially through the compartments via flow ports (74). The same high effectiveness sequential liquid recirculating cocurrent upflow desorption can also be accomplished in a horizontal cylindrical annulus, in plate fin exchangers, and in other geometries.

REFERENCES:
patent: 2240176 (1941-04-01), Coons et al.
patent: 2440583 (1948-04-01), Hainsworth
patent: 3254507 (1966-06-01), Whitlow
patent: 3828576 (1974-08-01), Eidet
patent: 4127993 (1978-12-01), Philips

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